HP StorageWorks 500 G2 Modular Smart Array - Manual (Page 66)

66 HP StorageWorks MSA500 G2 Storage System User Guide
– If an 86 controller display message appears, drive positions were changed
successfully and the configuration was updated.
– If a 121 controller display (no volumes) message appears, power down
the system immediately to avoid data loss, and return the drives to their
original positions.
6. Check the new drive configuration by running ORCA or ACU.
Expanding and extending capacity
You can add hard drives to a system at any time, as long as you do not exceed the
maximum number of drives that the controller supports. You can then either
build a new array from the added drives or use the extra storage capacity to
expand the capacity of an existing array.
To perform an array capacity expansion, use ACU. If the system is using hot-
pluggable drives, you can expand array capacity without shutting down the
operating system (that is, with the server online) if ACU is running in the same
environment as the normal server applications. (For more information, refer to
the HP Array Configuration Utility User Guide.)